Jacket



FIG. 1 is a front elevational view of a jacket showing my new design;

FIG. 2 is a rear elevational view of the design shown in FIG. 1; and,

FIG. 3 is an additional front elevational view of the design shown in FIG. 1.

The broken lines shown in the drawing figures are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a jacket, as shown and described. 